What have you done to your Tacoma today? 1st Gen Edition

Maybe. If you consider all crankshaft pulleys a harmonic balancer. A true harmonic damper a has a counter weight. And if I/m not mistaken includes a three piece design, where a solid section of rubber dampers the two metal halves.

 

Sometime in late 2002. I've only seen one 02 have it. I knew I wasn"t crazy..

 

I'm surprised how common those Rostra kits are. I'm going to assume some of them were a dealer option.

 

Do our trucks have front impact airbag sensors like the 3rd Gen 4Runner? I've never seen it before working in the engine bay.

 

My 04 does.

 

I don't have them on either of my trucks. Must have been introduced in 2001-ish.

 

Yes

 

I don't have it. I believe earlier trucks have the accelerometer/G-Force based SRS system.

 

I should be more clear. They are located on each side of the engine lower down on the wheel well. One should be found under the fuse box area and the opposite of that on the other side

 

Pretty sure I don't have it. I've taken the fuse box out of my 5-Lug to replace the main 80A? fuse, and the intake out of my PreRunner. Never saw a yellow wire loom anywhere in the vicinity.

 

Yeah idk if different years have a different setup but atleast the newer first gens have it

 

I find it strange you don't have the electronic throttle body. I was sure all 2003/2004 trucks had it.

 

Yeah it’s strange

But i did a little digging and I found the sensor part says 01-04
But another sorce said 95-98 has only 1 under the radio and 99-04 have all 3

 

The airbag sensors? I'll have to check again.

 

Yeah teh airbag sensors. Looks like your truck only has the one thats with the ecu under the radio

 

That's what I thought, the accelerometer/g-force based system. I was curious about how say an ARB bumper would affect functionality of frontal airbag sensors.

 

No sensors in the bumper so your ok

 

I know. But ARB has an explicit notice for something regarding airbag sensor functionality.

I’m curious if this is just their legal team protecting their asses, or if there’s truly any kind of risk.

 

Going to have to disagree on the counterweight- that is most often done on the flywheel in the case of an externally-balanced engine. I've never seen (but then I haven't seen everything! ) a counterweight in the crank pulley/HB. But I defintiely agree the HB is normally a three piece affair- inner ring, elastomer/rubber, and outer ring/pulley surface.

It occurs to me maybe you're talking about the imbalance inherent in the assembly? Not sure on that one. Every externally balanced engine I've dealt with has been balanced at the flywheel/flexplate. But that being said- I have mostly dealt with American engines, and it's becoming apparent the Japanese do things a bit differently!

Either way, I'm sure to learn something.

 

Dealer or car stereo shop. I installed a ton of them (maybe not that specific brand) in the early 90s.